Combined type-writing and computing machine.



G. O; DEGENER.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

Patented May 15, 1917.

4 SHEETS-SHEET I.

APPLICATION FILED JULY 27.1911.

G. 0. DEGENER.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED IULY 27.19M-

Patented May15, 1917.

4 SHEETS-SHEET 2.

3Q Q. Q m fi 1 w k N v I GGQ Patented May15, 1917.

4 SHEETS-SHEET 3.

s. 0. DEGENER.

APPLICATION FILED JULY 21.19!!- COMBINED TYPE WRITING AND COMPUTINGMACHINE.

Patented May 15, 1917.

4 SHEETS-SHEET 4.

G. 0. DEGENER. comsmeo TYPE'WRITING AND COMPUTING MACHINE.

APPLiCATlON FILED JULY 21,191]- 1,226,315.

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UNITED STATES PATENT omnou.

GUSTAVE o. m eENEa, on NEW YORK, iv. Y., Assieivoa 'ro UNDERWQOD,COMPUTING MACHINE COMPANY, or NEW YORK, 1v. Y., A CORPORATION orNEwJYoaK.

i COMBINED TYPE-WRITING AND COMPUTING MACHINE.

Application filed July 27, 1911.

To oil whom it may concern:

Be it known that I, GUSTAVE O. DEGENER, a citizen of the United States,residing in New York city, in the county of New York and State of NewYork,'have invented certain new and useful Improvements in CombinedType-lVriting and Computing Machines, of which the following is aspecification.

This invention relates to an improvement in computing typewriters, andespecially to a comma space locking device, and is an improvement onapplications No. 485,046, filed March 22, 1909 and No. 556,378, filedApril 19, 1910 by Walter lVright, and also upon my Patents No. 990,23dated April -25, 1911, and No. 1,020,082, dated March 12,

The object of this invention is to prevent, in a computing typewriter,the computation at improper points in the actuation of the machine. Thisis shown embodied in this case not only to prevent computation, but alsoto the extent of preventing imprinting of the numerals at predeterminedintervals, such as have been found in practice as likely to causetrouble. These intervals may be best illustrated by points at which acomma or period should be located between the hundreds and thousands,thousands and millions, etc., and between the in tegers and decimalfractions of a whole numher in one or more columns to be tabulated andcomputed.

Another object of this invention is to provide means for selectivelycontrolling the instant at which the computing and imprinting, in acomputing typewriter, may be interrupted or interfered with.

A still further object of this invention is to controlthe computing andimprinting of a computing typewriter, so that it may be interrupted atpredetermined intervals, and further in such a manner that the controlmechanism can be disconnected or connected at will to render the sameinactive or active.

In the embodiment utilized to illustrate this inventiomthe tabulatingstops are utilized to actuate certain trippers, which in turn, throughthe intermediary of connecting mechanism such as levers, interpose anobstructing or interfering blade or member in the path of motion ofother blades or members connected to the numeral. keys,

Specification of Letters Patent.

Patented May 15, 1917.

Serial No. 640,752.

whereby the numeral keys are locked against actuation, and thus thecomputing and imprinting mechanisms actuated or controlled by thenumeral keys are locked against actuation.

These aucl further features, together with the construction andcombination of parts, will be described more fully hereinafter andparticularly pointed out in the claims.

In the accompanying drawings,

Figure 1, is a side elevation, partly in section, of the presentimprovements applied to an Underwood front strike typewriting machine.

Fig. 2 is a plan view of the principal devices seen at Fig. 1.

Fig. 3 is a sectional. elevation to show the grouping of the interferingblades, one of which is shown as moved across the common center toeffective position, thus blocking the operation of the remaining blades.

Fig. 4 is a perspective view of the principal elements of the mechanismattached to the computing mechanism seen at Fig. 1, particularly thelocking devices.

Fig. is a sectional view of the interfering blades or members, showing,in its effec tive position, the extra blade which is utilized tointerrupt the action of the numeral keys, and thus the computing andimprinting. mechanism at predetermined intervals corresponding to theposition of the carriage at points where a comma or period should bestruck.

Fig. 6 is a sectional front elevation of a fragment of the computingmechanism showing the master wheel, its shaft, the gearing connected tosaid shaft, and some of the computing wheels meshing with said masterwheel.

Fig. 7 is a fragmentary front view in elevation, showing such details asare necessary to connect the improved mechanism with cooperatingmechanism.

T z pcwritng mechanism.-The typewriting mechanism includes alphabet andcharacter keys 1 and numeral keys 2, all mounted upon levers 3, havingreturning springs and connected by means of elbow levers with type-bars6, to cause the latter to swing upon pivots 8 to the platen 7.

Each type-bar carries a. heel 9, to press rearwardly a universal bar 10,mounted upon a frame 11, the latter pivoted at its rear end to idle arms12*. Said universal bar frame 11 swings rearwardly a dog rocker 12carrying a feeding dog 13 and a detent dog 14-, whereby a pa'')er-carriage 15 is given its letter-feeding motion, said carriage beingpropelled by a spring 15. Said dogs move into and out of engagement withan escapement wheel 16, which is connected to a pinion 17 the lattermeshing with a rack 18 upon said carriage. Upon the universal bar isprovided an actuator 19 for a ribbon-vi.- brating lever. As so fardescribed, the parts are in common use upon the Underwood typewritingmachine.

lVhenever a key is depressed, the elbow lever 5 is swung forwardly, andthe typebar is swung rearwardly against the platen to make an impressionthereon, and the universal bar pushes the feeding-dog 13 out ofengagement with the escapement wheel 16, and the detent dog 14 intoengagement with said wheel; no letter-feeding motion of the carriageoccurring at this time. Upon relieving the key from pressure, the partsare returned to normal positions in the usual manner, the universal barbeing returned by a spring 21., and moving the detent out of engagementwith the escapement wheel 16, and the feeding-dog 14 into engagementtherewith; said. feeding-dog permitting the carriage to advance a letterspace under the influence of the driving spring 15, as usual. Computingmcchanis m .Arll of said keys control the letter-feeding movements ofthe carriage 10; but only the numeral keys 2 are connected to thecomputing mechanism, which is power-driven, its motor being in dicatedat 22, and being connected by a suitable train of gearing 'to the addingwheels 23, and a primary escapement wheel 24, the latter being under thecontrol of the numeral keys 2, whereby the keys are enabled to determinehow far the computing wheels 23 shall be rotated by the motor 22.

Preferably, the motor 22 is constantly revolving, although the primaryescapement wheel 24 remains motionless, together with the computingwheels, until the keys 2 are operated. Theconneetion from the motorincludes any suitable clutch 25, whereby is driven a shaft 26, thelatter having a pinion 27 meshing with. a pinion 28, whereby is rotateda. shaft 29, having at its opposite end a pinion 30. To the last isconnected, by means of a gear 31, a pinion. upon a shaft 33, the latteralso having a pinion 34, which is connected by means of a pinion 35 tovertical shaft 36, the latter carrying a pinion 37, meshing with apinion 38 fixed upon shaft 39, which carries a master-wheel 40, arrangedinteriorly of a series of computing wheels, in the shape of rings 41,having internal teeth 42 to engage the proj ec'ting master-wheel teeth.The computing wheels are supported upon a special carriage or frame 43,which is connected by arms or lugs 44 to the typewriter carriage 15, totravel therewith, whereby the com puting wheels are given adenominational movement, relatively to the stationary master-wheel, atevery letter-feeding movement of the main carriage 15.

For carrying tens from one computing wheel to the next, there may beemployed any suitable means. The wheels 41 mesh with mnnber-bearingwheels 41.

The primary escapement wheel 24 is connected to the described train ofgearing by means of pinion 45, on the shaft of the escapement wheel,said pinion meshing with gear 46 fixed to gear 31 already described.Said escapement wheel 24 carries a set of settable pins or teeth 47, oneof which projected and in engagement with a fourtoothed pinion 48, whichis connected to a secondary escapemeut wheel 49, the latter normallypressing against a detent dog 50.

The rocking of said dog 50 permits the tooth of the secondary cscapementwheel 49 to escape from said dog and be caught by a feeding dog 50"; andthe return movement of the dogs permits the wheel 49 to escape or feed,so that the succeeding tootlr of the four-toothed pinion 48 may beengaged by the next projected tooth 47, to arrest the primary eseapementwheel 24-, and hence the described train of gearing, including thecomputing wheels 41.

Theescapement or index pins 47 are projected by means of the numeralkeys 2, the latter being connected by links 51, pendent from bell-cranksand having hooks 53 to engage suitable projections or parts 54 on thekey levers 3. The bell cranks are connected by horizontal links to arms56, suitably pivoted at 57, and preferably formed. at their oppositeends with jacks 58, for forcing the escapemcnt pins 47 from normalpositions to projected positions. to enable them to engage thefour-toothed pinion 48. The arms 56 are normally adapted to eng go auniversal disk or member 63, around which the arms are grouped radially.Said disk is mounted upon a guide rod 69 and has a returning spring 70.Upon the rod '6!) is provided a head or collar 71, and the end of alever 72 is confined between said head and said universal bar or member68 to be operated thereby. The lever is pivoted at 73 to any fixed sup--port, and connected by a link 61 to an arm 60 and a rock shaft 59, so asto enable any of the numeral keys 2 to rock or reciprocate the dogs 50,50, to control the starting and stopping of the primary escapement wheel24 of the computing mechanism.

0peraiion.-ln the operation of the parts so far described, the keys 1may be manipulated for ordinary typewriting in the manner already setforth. lVhen a numeral key 2 is depressed, it also swings up its typebarto print, and the type-bar operates the universal bar 11 of theletterfeeding mechanism, the rear of the latter engaging a projection 12on the dog rocker and moving the feeding-dog 13 out of engagement, andthe detent dog 14: into engagement with the escapement wheel 16. At thesame time the link 51 is pulled down by said key, and bell crank 52 isturned, and by means of the link 55 swings arms 56,thereby operating theuniversal member 68 and the lever 7 2, which, through the thrust link 61and the rock arm 60, turns the rock shaft 59 and the dogs thereon andpermits the secondary escapement wheel 49 to escape from the detent dog50 which corresponds to the limber dog usually employed in the carriagefeeding mechanism of typewriting machines. Thus the pins 47 and theirassociated parts form an indexing mechanism determining how far themaster wheel shall turn.

During the swinging of the arm 56 cffected. by the depression of the key2, the jack 58 on said arm engages the adjacent pin 47 on the maincscapement wheel 24:, and projects the same into position to engage thefour-toothed pinion 48. No other movement of any part of the addingmechanism occurs upon the down stroke of the key; the adding wheels allremaining stationary upon such down stroke.

Upon the relief of the key 2 from pressure, the type bar and key leverare returned to normal positions, together with arm 56, jack 58.universal member 68, and the parts connected to the latter, includingthe lever 72., Upon the return of the type bar from the platen, thespring 21 moves the universal bar forwardly, and the detent dog 14escapes from, and the feeding-dog 13 moves into the line with, theescapement wheel 16 of the carriage 15, and the spring 15 is permittedto pull. said carriage the width of one letter.

The universal member 68, and its con nected parts, are returned tonormal positions by the spring 70. The secondary escapement wheel 49escapes from the dog 50, and the motor 22 operating through the clutch25, now drives the gearing of the computing mechanism, and the escapemcnt wheel 24 revolves until it is arrested by that tooth 47 which wasprojected by the key 2 just released. The previously projected pin isreturned to normal position by a fixed cam 73. The projected pin 4:7determines the extent of rotation of the power driven primary escapementwheel 24. and hence of the master wheel 40 and of the computing wheel 41with which the master wheel is at the time in engagement.

This release of the secondary escapement wheel a9 occurs at the finalportion of the letter feeding movement of the paper carriage 15. Thesucceeding tooth of the secondary escapement wheel 49 is arrested by thedog 50.

It will be seen that the relative denominational movement between thecomputing master wheel .40 and the computing wheels tl is controlled bythe carriage 15; the carriage 43 connected thereto being caused to movefrom one denomination to the next at each letter-feeding movement of thecarriage 15.

Means for enabling ea eh numeral key to inter ere with the operation 0/the other na1neraZ]ceys.Each of the key-operated arms 56 may be providedwith an interference member in the form of a blade 80 which may be inthe form of a segment having the pivot 57 as a center. These blades 80,which are carried upon the ends of extensions 81 of said arms 56, areloosely mounted or supported in a series of radial slots 82 formed in afixture 83, and the tips of the blades lie in a row which forms theprincipal portion of a, circle around a small central opening 84 in saidsupport 83. So long as said opening occupied by any blade, no other blace can pass through said opening, as it will encounter the first blade;and hence it is impossible to operate any of the remaining figure keysuntil the first key is returned to or substantially to normal position.Thus, each numeral key 2 interferes with the operation of all the othernumeral keys, so that it is not practicable to depress more than onenumeral key at a time; and as soon as one numeral key is partlydepressed, the depression of any other numeral key is prevented.

e now come to the particular improve ment whereby the imprinting andcomputing is controlled indirectly through the interference with theaction of the numeral keys. For this purpose the tabular stops,indicated at 11 1, are utilized to actuate successively a series oftrippers 115, one of which is provided for each of the points where itis desired to interrupt the action of the computing and imprintingmechanism, and also the action of the numeral keys. As shown in thiscase, three of these trippers are provided corresponding to the commaand period between millions and thousands thousands and hundreds, and between the whole number and a decimal fraction of a whole number, and forthis purpose are spaced apart a distance corresponding to threecharacters or numerals. While the trippers 115 may be of any suitableform, they are shown to consist of bell crank levers having one arm 116provided with a cam head which will permit the stops 114 to ride overthe trippers in either direction, and thus depress them, causing thebell crank levers to swing about their .pivots. The other arm of eachbell crank lever,

indicated at 117, is adapted to actuate a bar 118 in any suitablemanner, as for example, by extending at .its end into a socket or slot119 provided therein. It will thus be seen that when one of the tabularstops rides over any one of the trippers 115, it will depress one arm ofthe same, and thereby shift the bar 118 in a longitudinal direction, sothat it will in turn actuate through the intermediary of a connectinglink 120 a lever 121 against the tension of a spring 122 which isadapted to return the bar 118, and thus the tli'l'JPQl'S 1.15, to anormal position. The lever 121 may he pivoted intermediate its ends, asat 123, and may be provided with a reduced portion at 121 which extendsbetween the forks of the obstructing end of a lever 125, which maylikewise be pivoted intermediate its ends, and connected at the oppositeend from the obstructing end by means of a link 1% to an interrupting orobstructing member 127, which shown in the form of a blade adapted toact similar to the blades to prevent movement of any one of them, whileit is forced across their common path, due to the depression oractuation. of any one of the trippers 115.

It will be seen that the stops 11% are detachably connected to a bar 128by being slotted so as to form a pair of forks, one of which is adaptedto engage in slots 129 above the bar and the other of which is adaptedto engage slots 180 on the under side of the bar. In view of the factthat the bar 128 may be slotted throughout its length, these stops canbe located at any one of a plurality of positions, so that the exactpoints at which the stops will actuate the tripper may be selectivelycontrolled, so as to selectively control the points at which theoperation of the mechanism will be interrupted or interfered with. Itis, of course, to be understood that the bar 129 travels along with thecarriage l5, and may be connected thereto in any suitable manner forthis purpose. This renders the interfering or locking mechanismcontrollable by the carriage, according to the particular position ofthe carriage, so that to a certain extent it may be said that thecomputing and imprinting mechanism, and the keys themselves arecontrolled in their operation from and by the carriage, so as to renderthem active or inactive at certain points in the movement of thecarriage.

In view of the fact that the stops 114 can be entirely removed or atleast positioned in the slots 129 and 130 so as not to overlie thetrippers 115, the actuation of the trippers, and thus the interruptionof the action of the numeral keys and the adding and imprintingmechanism, can be discontinued at the will of the operator. For example,the tabulating stops 1141- can be entirely removed, and it will thus beevident that the trippers 115 will not be depressed, but will remain intheir normal raised position, so that there will be no interruption ofthe action of the parts or the locking thereof, due to this source.

lVhile l have shown one embodiment of my invention, 1- do not wish to belimited to the specific details thereof, but desire to be protected inthe various changes, alterations and modifications, which may comewithin the scope of the invention. 1 do not, however, claim theinventions shown in said application of Wright, No. 485,046, or in theapplication of Hart, No. 4.66 36, filed December 10, 1908, or shown inany divisions of said applications.

Having thus described my lIIVGlltiOIl, I claim:

1. In a combined typewriting and com.- puting machine, the combinationwith typewriter numeral keys and a traveling carriage, of an adjustablestop forming part of a tabulating mechanism for positionin saidcarriage, computing mechanisn'i comprising indexing mechanism,connections between said indexing mechanism and said, keys, meansbetween said indexing meclmnism and said keys for locking said keys, andconnections whereby said locking means is controlled by said stop.

2. The combination with a carriage and a plurality of typewriter keys,of a computing mechanism controlled by said keys, a series ofinterfering members movable across a common path, so that each one whenactuated will interfere with the movement of the rest of saidmembers,'said members being operatively connected to certain of saidkeys, so as to control the action of said certain keys, a plurality oftrippers pivotally mounted, a bar having sockets therein adapted to beengaged by each of said trippers, a lever, and an interfering memberconnected to said lever, a link connection movable into the path of saidfirst-mentioned interfering members, so as to prevent the movement ofthe computing mechanism by certain of said keys at certain times, andmeans for operating said trippers at predetermined intervals.

8. The combination with a computing mechanism, of a. series of keys forcontrolling the action of said computing mechanism, a traveling member,stops for controlling the position of said member, and means operated bysaid stops for preventing the actuation of said computing mechanism bysaid keys.

41. In a combined typewriting and computing machine, the combinationwith a traveling typewriter carriage, of decimal tabulating mechanismfor positioning said carriage, an adjustable stop forming part of saidmechanism and adapted to arrest said carriage at any one of a pluralityof columns determined by the position of the stop, typewriter numeralkeys, computing devices under the control of said keys, and meanswhereby said stops are elfective to lock said. keys at a plurality ofpredetermined denominations in a column selected by said tabulatingmechanism.

5. The combination with a computing mechanism, of numeral keys foractuating said computing mechanism, locking mechanism for said numeralkeys, a series of trippers spaced apart at predetermined intervals,operative connections between said trippers and said locking mechanismwhere by the former may control the latter, a traveling member, andstops for controlling the position of said traveling member, said stopsbeing arranged to engage said trippers and thus actuate said lockingmechanism at predetermined points in the travel of said member.

6. In a combined typewriting and computing machine, the combination witha traveling typewriter carriage, of tabulating mechanism forming part ofthe typewriting mechanism, a stop forming part of said tabulatingmechanism adapted to be selectively located to position said carriage,computing devices effective in a zone selected by said carriage, andmeans operated by said stop for locking said keys at a column in thetravel of said carriage selected by said stop.

7. The combination with a computing mechanism, of a plurality of keysfor controlling the action of said computing mechanism, individualinterfering members connected to each of said keys and movable across acommon path so that the actuation of one will interfere with theactuation of all the others, another interfering member movable acrosssaid common path to inter fere with the action of said first-mentionedmembers, a traveling carriage controlled in its movement by said keys,and carriage-controlled means for bringing into play said last-mentionedmember at predetermined points in the travel of said carriage.

8. The combination with a computing mechanism, of a plurality of numeralkeys for controlling the action of said computing mechanism, individualinterfering members connected to said keys and movable at the actuationof said keys across a common path so that the actuation of one willinterfere with the actuation of all the others, another member movableacross said common path to interfere with the action of saidfirst-mentioned members, a series of trippers, operas tive connectionsbetween said trippers and said last-mentioned member, a travelingcarriage, and means on said carriage for actuating said trippers atpredetermined points in the travel of said carriage.

9. The combination with a computing mechanism, of a series of numeralkeys for actuating said computing mechanism, locking mechanism forpreventing the action of said computing mechanism, a computing headarranged to receive the numbers computed by said computing mechanism andcomprising a series of computing wheels spaced into groups, a pluralityof trippers arranged in succession, a universal bar operated by saidtrippers and connected to operate said locking mechanism, a travelingcarriage, a master wheel having a relative movement with respect to saidcomputing wheels so as to come into register successively with saidcomputing wheels and with the spaces between the groups of saidcomputing wheels, and means carried by said carriage for concomitantlyactuating individuals of said trippers and bringing said master wheelinto register with the spaces between the groups of said computingwheels.

10. The combination with a carriage, of typewriting mechanism, computingmechanism, a series of keys for actuating both said typewriting and saidcomputing mechanisms, a lock for preventing the actuation of both saidtypewriting and said computing mechanisms by said keys, stops fordetermining positions of said carriage, and connections enabling saidstops to operate said lock at predetermined points in the travel of saidcarriage.

11. The combination with a traveling carriage, of typewriting mechanismcooperating with said carriage, computing mechanism, a series of keysoperating both said typewriting and said computing mechanisms,tabulating mechanism for determining the position of said carriage, andlocking means operable from said tabulating mechanism for preventingoperations of said computing mechanism at predetermined intervals in thetravel of said carriage.

12. In a computing machine, the combination with numeral. keys,radially-arranged key-interfering devices operated by said keys, and acooperating radiallyarranged interfering device operated by the carriagefor preventing the operation of any numeral key.

18. In a computing machine, the combination with a member having radialslots and devices working in said slots for controlling the action ofnumeral keys, of connections for operating said devices, a universal baroperated by each one of said 0011- nections, and a radial device alsooperating in one of said slots comprising a connection ineffective onsaid universal bar.

lt. A combined typewriting and computing machine, having numeral keys,computing mechanism, and a traveling carriage; and comprising, incombination, blades operated individually by said keys for preventingthe simultaneous operation of any other key, and a blade operated bysaid traveling carriage to be moved to a posinumeral key, and means forlocking said key tlon to cooperate wlth any of the blades opbrought mtoaction tlnrough the mcdlum oi emted by said keys, to prevent operationof said column stop.

all of said keys. GUSTAVE O. DEGENER.

15. In a combined typewriting and com- Witnesses:

puting machine, the combination with a car- J. E. LUCAS,

riage, of a column stop for said carriage, a J. E. DAVIDSON.

Copies 01' this patent may be obtained for five cents each, byaddressing the Commissioner of Iatentm Washington, D. G.

